Speaker
Prof.
Stefano Selleri
(DINFO, University of Florence)
Description
Absorbing baffles and irises are used to suppress stray light in the arm pipes of long baseline optical interferometric detectors of gravitational waves like LIGO and Virgo, due to the finite size of the mirrors etc.
Baffle themselves, however, can be sources of diffracted light, and hence noise.
Here we analyze diffraction from baffles using a uniform version of the geometrical thery of diffraction, and expand the scattered cavity fields in terms of Gauss-Laguerre modes, for different baffle geometries.
Authors
Prof.
Stefano Selleri
(DINFO, University of Florence)
Prof.
Giuseppe Pelosi
(DINFO, University of Florence)
Prof.
Innocenzo M. Pinto
(University of Sannio at Benevento, INFN, LVC and KAGRA)
Dr
Leonardo Possenti
(DINFO, University of Florence)
